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dde_bsd: query initial head-phone state

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Account for the situation where the driver is started while the HP
is already plugged in and configure the mixer accordingly.

Thanks to Peter for the patch.

Issue #3929.
This commit is contained in:
Josef Söntgen
2020-09-21 17:38:54 +02:00
committed by Christian Helmuth
parent 1b4444ce9e
commit b6912a3d87
2 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
repos/dde_bsd/src/lib/audio/driver.cc
View File

@ -216,7 +216,7 @@ static bool set_mixer_value(Mixer &mixer, char const * const field,
}
static char const *get_mixer_value(mixer_devinfo_t *info)
static char const *get_mixer_value(mixer_devinfo_t const *info)
{
static char buffer[128];
@ -272,6 +272,33 @@ static char const *get_mixer_value(mixer_devinfo_t *info)
}
static bool headphone_plugged()
{
for (unsigned i = 0; i < mixer.num; i++) {
mixer_devinfo_t const &info = mixer.info[i];
if (info.type == AUDIO_MIXER_CLASS) {
continue;
}
unsigned const mixer_class = info.mixer_class;
char const * const class_name = mixer.info[mixer_class].label.name;
char const * const name = info.label.name;
Genode::String<64> const control { class_name, ".", name };
if (control != "outputs.hp_sense") {
continue;
}
auto const result = get_mixer_value(&info);
return Genode::strcmp("plugged", result) == 0;
}
return false;
}
static void dump_mixer(Mixer const &mixer)
{
Genode::log("--- mixer information ---");
@ -406,6 +433,8 @@ static bool configure_audio_device(Genode::Env &env, dev_t dev, Genode::Xml_node
configure_mixer(env, mixer, config);
notify_hp_sense(headphone_plugged() ? 1: 0);
return true;
}
@ -561,6 +590,12 @@ extern "C" void notify_record()
}
extern "C" void notify_hp_sense(int const sense)
{
set_mixer_value(mixer, "record.adc-0:1_source", sense ? "mic2" : "mic");
}
/*****************************
** private Audio namespace **
*****************************/

3
repos/dde_bsd/src/lib/audio/include/bsd_emul.h
View File

@ -8,7 +8,7 @@
*/
/*
* Copyright (C) 2014-2017 Genode Labs GmbH
* Copyright (C) 2014-2020 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
@ -28,6 +28,7 @@
void notify_play();
void notify_record();
void notify_hp_sense(int const);
/*****************